Cristina uses a ruler to measure the length of her math textbook. She says that the book is 4/10meter long. Is her measurement in the simplest form? If not, what is the length of the book in the simplest form?

answer: #1 ads up by 8 and i don't know #2

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .